What three natural resources are found in the great lakes region

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.